Rooting Method?

After purchasing my Note 5 I received a series of three OTA updates which left me with build number LMY47X.N920TUVU2CIO5. Currently I can't find any info on this specific firmware. No rooting info. No documentation period. Not a single search result via Google. Does anyone have any info regarding this firmware? This is a U.S.
T-Mobile phone. Any help will be gratefully appreciated. Thanks!